diff --git a/Gemfile.lock b/Gemfile.lock
index c2973d6..50a4c3b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
     colorator (0.1)
     execjs (2.2.2)
     fast-stemmer (1.0.2)
-    ffi (1.9.6)
+    ffi (1.12.1)
     hitimes (1.2.2)
     jekyll (2.5.1)
       classifier-reborn (~> 2.0)